Reaction catalyzed by plant 4,4-dimethylsterol C-4alpha-methyl-monooxygenase (1.14.18.10)
+
2
+
+
2
=
+
2
+
2
H2O
4alpha-(hydroxymethyl)-4beta,14alpha-dimethyl-9beta,19-cyclo-5alpha-ergost-24(241)-en-3beta-ol
+
2 ferrocytochrome b5
+
O2
+
2 H+
=
4alpha-formyl-4beta,14alpha-dimethyl-9beta,19-cyclo-5alpha-ergost-24(241)-en-3beta-ol
+
2 ferricytochrome b5
+
2 H2O
